What happens if my Lexus LS400 spark plugs fail?

When it’s time to replace the spark plugs, don’t delay. These small (but vital!) parts provide the electric spark that your car needs in order to start, and old spark plugs can prevent your car from starting at all. Replace spark plugs on time or about every 30,000 miles or so.

What does a puddle underneath my Lexus LS400 mean?

Don't ignore puddles of fluid under your Lexus LS400. It could signal a coolant leak, brake fluid leak, or an oil leak. Let any one of these leaks linger and it could cause engine damage.

What do hard starts and stops do to my LS400 engine?

You can make your driving habits more engine-friendly. Hard starts and stops can increase the stress on engine parts, especially over many years. Boost your fuel economy and care for your engine by using gradual, smooth starts and stops instead.

I need a Lexus LS400 tune-up. Where can I get on?

At your closest Firestone Complete Auto Care! Our experienced technicians offer Lexus LS400 service, maintenance, and repairs.

How frequently do I need to get my Lexus LS400 fuel injectors cleaned?

The frequency at which car fuel injectors should be cleaned can vary depending on several factors, including the type of fuel used and the driving conditions. Some manufacturers generally recommend a fuel system cleaning as part of your general car maintenance, or as needed based on symptoms of poor fuel system performance.

Who performs Lexus LS400 tune-ups?

When your LS400 needs a tune-up, head to your local Firestone Complete Auto Care. Check out our latest offers to save on your service and schedule an appointment online.

1998 Lexus LS400 Tune-Up & Engine Service

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Schedule Your Lexus LS400 Tune-Up Service Appointment

If your LS400 is acting strange or making new noises, it could be engine tune-up time. Don’t wait until small problems get bigger. Make an appointment now.

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Enhance Lexus LS400 Performance with a Tune-Up

Is it time for an engine tune-up? If you usually wait until your car has an issue to take it in for service, it might be time to change your ways, especially if you want your 1998 Lexus LS400’s engine to last for a long time. Periodic tune-ups can bring more power back to your LS400’s engine. Tune-ups help your engine start smoothly and run efficiently, which can lead to lower emission levels and better fuel economy. When you follow the guidelines specified by Lexus for your vehicle’s tune-up schedule, you’re taking vital steps toward keeping your LS400’s engine running smoother, longer.

Engine Tune-Up for Lexus LS400

Your local Firestone Complete Auto Care offers a range of engine tune-up services for your 1998 Lexus LS400. One option is the standard Firestone Tune-Up. The standard Firestone Tune-Up includes new spark plugs (and installation!), a thorough inspection of engine components, and a lifetime parts warranty*. The second service focuses on your LS400's filters, specifically replacing the air filter and fuel filter. Yet another service is a fuel system cleaning process, which involves removing varnish, dirt, and carbon deposits that have built up inside the fuel injectors, throttle body, and throttle plate in your LS400. The result? Restored fuel system performance. Consider this when choosing a tune-up service for your LS400: your vehicle’s maintenance record and mileage can determine which service is best. A one-size-fits-all engine tune-up procedure doesn’t necessarily exist. Talk to a technician about your driving style, mileage, and service history to learn more about your vehicle's specific needs.

Where Should I Go for My Lexus LS400 Tune-Up?

Come to Firestone Complete Auto Care for your next 1998 LS400 engine tune-up. Consult your vehicle’s recommended service schedule from Lexus, or make a service appointment if you notice any of these symptoms from your engine: shaking while the engine is idling, poor fuel economy, an illuminated check engine light on your dashboard, or a knocking sound when the engine is running.

*Talk to a Firestone Complete Auto Care teammate for full terms and conditions on warranties.

Common Engine Tune-Up Q&A For 1998 Lexus LS400s

What happens if my Lexus LS400 spark plugs fail? When it’s time to replace the spark plugs, don’t delay. These small (but vital!) parts provide the electric spark that your car needs in order to start, and old spark plugs can prevent your car from starting at all. Replace spark plugs on time or about every 30,000 miles or so.
What does a puddle underneath my Lexus LS400 mean? Don't ignore puddles of fluid under your Lexus LS400. It could signal a coolant leak, brake fluid leak, or an oil leak. Let any one of these leaks linger and it could cause engine damage.
What do hard starts and stops do to my LS400 engine? You can make your driving habits more engine-friendly. Hard starts and stops can increase the stress on engine parts, especially over many years. Boost your fuel economy and care for your engine by using gradual, smooth starts and stops instead.
I need a Lexus LS400 tune-up. Where can I get on? At your closest Firestone Complete Auto Care! Our experienced technicians offer Lexus LS400 service, maintenance, and repairs.
How frequently do I need to get my Lexus LS400 fuel injectors cleaned? The frequency at which car fuel injectors should be cleaned can vary depending on several factors, including the type of fuel used and the driving conditions. Some manufacturers generally recommend a fuel system cleaning as part of your general car maintenance, or as needed based on symptoms of poor fuel system performance.
Who performs Lexus LS400 tune-ups? When your LS400 needs a tune-up, head to your local Firestone Complete Auto Care. Check out our latest offers to save on your service and schedule an appointment online.

Proactive Maintenance - 1998 Lexus LS400

We know it’s not just a car, it’s your car. We’ll help you properly maintain your Lexus LS400 to keep it on the road and running smoothly. Learn more about maintenance below.

1998 Lexus LS400 Repair

Your Lexus LS400 runs best when it’s well cared for. Make sure it’s always in tip-top shape with repairs from Firestone Complete Auto Care. Learn more about 1998 Lexus LS400 repairs below.